
// console.log(0.03);

let n1 = 0.1, n2 = 0.2, n3 = 0.4, n4 = 0.5
console.log(n1.toString(2))
console.log(n2.toString(2))
console.log(n3.toString(2))
console.log(n4.toString(2))
console.log(n1 + n2);

console.log((n1 * 10 + n2 * 10) / 10);

var t = Math.round((0.018 * 10) * 100) / 100
console.log(t);